I've only have a few moments to click around but found a few significant fixes. So I'll start the list:

- During Playback, zooming the timeline with the keyboard doesn't send you to the end of the timeline
- Scale controls on timeline now update live
- Synchronize Clips now works if you have multiple non overlapping video clips for a single audio clip. (huge!)
- Preroll and Post Roll settings in preferences work.
- HDV Footage with "better performance" doesn't look nearly as bad. Way less flashing.
- Timeline feels much snappier.